128237361

素因数分解:

$3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{6869}}^1$

素因数の和:7013

約数の個数: 24

約数和(自身を含む): 200494080

約数和(自身を除く): 72256719

約数列:

[1, 3, 7, 21, 49, 127, 147, 381, 889, 2667, 6223, 6869, 18669, 20607, 48083, 144249, 336581, 872363, 1009743, 2617089, 6106541, 18319623, 42745787, 128237361]

約数ペア:

[(1, 128237361), (3, 42745787), (7, 18319623), (21, 6106541), (49, 2617089), (127, 1009743), (147, 872363), (381, 336581), (889, 144249), (2667, 48083), (6223, 20607), (6869, 18669)]